CN206033786U - Blast furnace gas wet process deacidification ware - Google Patents

Blast furnace gas wet process deacidification ware Download PDF

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Publication number
CN206033786U
CN206033786U CN201621088051.5U CN201621088051U CN206033786U CN 206033786 U CN206033786 U CN 206033786U CN 201621088051 U CN201621088051 U CN 201621088051U CN 206033786 U CN206033786 U CN 206033786U
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China
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filter layer
tower body
blast furnace
layer
porcelain ball
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CN201621088051.5U
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Chinese (zh)
Inventor
贾彩清
苏威
张秋霖
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CISDI Engineering Co Ltd
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CISDI Engineering Co Ltd
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Abstract

The utility model belongs to the technical field of gas cleaning, especially relate to a blast furnace gas wet process deacidification ware. Including the tower body, be equipped with air inlet and gas outlet on the tower body, the filter layer that is equipped with venturi in the tower body and is used for gas dewatering and flow equalizes, the filter layer is porcelain ball packing layer. The beneficial effects of the utility model are that: set up the filter layer and flow equalize and even dehydration to coal gas in the tower body, be favorable to the interior coal gas uniform flow field's of tower formation, and then improve efficiency and the dehydration efficiency that sprays the deacidification. And coal gas passes through to pass through behind the venturi filter layer again, and compact reasonable, the simple structure of overall arrangement evenly discharges after doing benefit to the coal gas deacidification, improves gas processing efficiency. Porcelain ball that the adoption was made by al_2O_3 and silica is as the filter layer, and third of the ten heavenly stems ethylene packs or metal packing compares with commonly used the gathering in this area, and that the porcelain ball packs is corrosion -resistant, high temperature resistance can be better, the stable performance, and it is convenient to maintain.

Description

A kind of blast furnace gas wet method deacidification device
Technical field
This utility model belongs to flue gases purification field, more particularly to a kind of blast furnace gas wet method deacidification device.
Background technology
For responding the policy requirements of national energy-saving environmental protection, domestic blast furnace adopts dry method dust in a large number;But in actual production, Because dry dedusting technology can not effectively remove the acidic gaseous corrosive medium such as dechlorination, sulfur, cause blast furnace gas pipeline and auxiliary device Occur in that etching problem.Industry sprays alkali liquor acid stripping method using the more tower wet method of blast furnace gas at present, and coal gas is in spray alkali liquor Generally need to carry out processed by packing layer after process.Coal gas into packing layer can not also in addition to being entrained with moisture Alkali liquor and acidic materials that part has neither part nor lot in reaction have been carried secretly with avoiding.Therefore, filler layer material is acidproof, alkaline-resisting, resistance to erosion Performance, filler Rotating fields will have good water conservancy diversion, flow ability, can reach preferably stream and dehydrating effect.And it is traditional Packing layer typically adopt garland shape polystyrene or metal charge, because the filler voidage of garland shape is up to 0.9, flow effect Poor, in addition to reducing dehydrations of the packing layer to coal gas itself, the uniformity for also resulting in coal gas flow field in tower body is poor, coal Gas is insufficient with alkali liquor hybrid reaction, and then reduces spray alkali deacidification effect so that overall deacidification and dehydrating effect are deteriorated.Separately Outward, the fire resistance of polystyrene filler is poor, after adhering to the gas ash in blast furnace gas, meets fire and is susceptible to blast accident, Increased the potential safety hazard and operation difficulty of conventional maintenance such as parts cutting, welding job in tower.The resistance to gentle resistance of metal packing Fuel efficiency fruit preferably, but the embrittlement under acid, alkali environment and corrosion resistance is poor, service life is short.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model are to provide a kind of blast furnace gas wet method to take off Sour device, for solving in prior art, in coal gas extracting tower, packing layer flows and effect on moisture extraction is poor, plant maintenance is difficult, use the longevity The problems such as ordering short.
For achieving the above object and other related purposes, this utility model provides a kind of blast furnace gas wet method deacidification device, bag Tower body is included, the tower body is provided with air inlet and gas outlet, be provided with Venturi tube in the tower body and for dehydration of gas and The filter layer of stream, the filter layer are porcelain ball filler layer.
The beneficial effects of the utility model are:Filter layer is set in tower body, and filter layer is porcelain ball filler layer, porcelain ball filler The voidage of layer is less than the voidage of garland shape packing layer, flows effect preferably, coal gas is taken off except improving packing layer itself Water effect is outer, moreover it is possible to improve in tower body and in Venturi tube coal gas flow field uniformity, be conducive to coal gas to be sufficiently mixed with alkali liquor Reaction, so that improve spray alkali deacidification effect so that overall deacidification and dehydrating effect are lifted.
Further, the voidage of the porcelain ball filler layer is 0.5~0.7, and suitable voidage is conducive to improving packing layer Stream effect, it is to avoid because the too small gas of voidage is by difficulty, and avoid affecting to flow effect because voidage is excessive.
Further, the porcelain ball filler layer is located between the port of export and the gas outlet of tower body of Venturi tube, the literary mound In the arrival end of pipe connect with air inlet, coal gas flowed out by the port of export of Venturi tube after through the porcelain ball filler layer, layout Compact and reasonable, simple structure.
Further, the filter layer includes at least two-layer porcelain ball.
Further, the particle diameter of every layer of porcelain ball of the filter layer is more than or equal to 6mm, and the packed height of every layer of porcelain ball is big In equal to 300mm.
Using the beneficial effect of above-mentioned further scheme it is:At least two-layer porcelain ball, the particle diameter of porcelain ball and filling is set Suitable scope is arranged on highly, it is to avoid because diameter is excessive, highly too low and cause that voidage is excessive, packing layer is too thin affects de- The effect that water flows, also avoid because diameter is too small, excessive height and cause that voidage is too small, packing layer is too high and increases Gas Flow Dynamic resistance is lost, and by combinations thereof, pressure loss during coal gas void tower flow velocity 2m/s~3m/s is not more than 3kPa.
Further, the ground floor porcelain ball of the filter layer is with diameter greater than equal to second layer porcelain ball diameter.The filter layer The a diameter of 19mm of ground floor porcelain ball, a diameter of 6mm of second layer porcelain ball of the filter layer, the height of every layer of porcelain ball is 500mm.
Using the beneficial effect of above-mentioned further scheme it is:Along air current flow direction, the porcelain ball of a diameter of 19mm is first laid, The porcelain ball of a diameter of 6mm is re-layed, with diameter greater than second layer porcelain ball diameter, such arrangement can reach air-flow and exist ground floor porcelain ball The effect progressively spread in packing layer, is issued to good stream so as to be advantageously implemented in the less situation of air current flow resistance With uniform dehydrating effect, and the diameter of every layer of porcelain ball is identical so that porcelain ball uniformly can be arranged in arrangement, gap uniformity, It is convenient to implement.
Further, the porcelain ball of the filter layer being fabricated by by aluminium sesquioxide and silicon dioxide, using three oxidations two Porcelain ball made by aluminum and silicon dioxide causes the corrosion-resistant of filter layer, high temperature resistant and anti-fire performance good, stable performance so that tower The safety of interior production maintenance is improved, and reduces maintenance and operation difficulty.
Further, Support bracket is provided with the tower body, be equipped with flase floor, on the flase floor on the Support bracket Be equipped with silk screen, the filter layer is laid on silk screen, by bracing frame, flase floor, silk screen successively laying, simple structure but Stable, while playing a supporting role, coal gas can also enter filter layer, and the hole of silk screen is intensive tiny, be conducive to laying different The porcelain ball of diameter, it is to avoid porcelain ball comes off from supporting construction because diameter is less.
Further, spray alkali device is provided with the Venturi tube, and sprays the arrival end that alkali device is arranged on Venturi tube, spray Alkali device is arranged on the arrival end of Venturi tube so that alkali liquor and coal gas can together by carrying out acceleration stream during Venturi tube Dynamic, coal gas forms high velocity air and alkali liquor is atomized, and without the need for causing alkali liquor to be atomized by auxiliary equipment, device structure is simple, coal Gas and alkali liquor are fully contacted reaction, improve deacidification effect, reduce cost.
Further, the air inlet and gas outlet are arranged on the top of tower body, and the bottom of the tower body is provided with collecting tank, institute The top that Venturi tube and filter layer are located at collecting tank is stated, coal gas can from top to bottom pass through Venturi tube, and velocity of liquid assets is fast, tower Body bottom arranges collecting tank and is easy to the waste liquid after collecting deacidification, and topology layout is rationally compact.
Description of the drawings
Structural representations of the Fig. 1 for this utility model embodiment.
Piece mark explanation
1 tower body;
2 air inlets;
3 Venturi tubes;
4 spray alkali devices;
5 filter layers;
5a ground floor porcelain ball
5b second layer porcelain ball
6 gas outlets;
7 collecting tanks.
Specific embodiment
Embodiment of the present utility model is illustrated by particular specific embodiment below, those skilled in the art can be by this Content disclosed by description understands other advantages of the present utility model and effect easily.
It should be clear that in this specification it is cited such as " on ", D score, "left", "right", the term of " centre " and " " etc., also Only understanding for ease of narration, and be not used to limit the enforceable scope of this utility model, its relativeness are altered or modified, Under without essence change technology contents, when being also considered as the enforceable category of this utility model.
As shown in figure 1, this utility model blast furnace gas wet method deacidification device, including tower body 1, tower body 1 is provided with 2 He of air inlet Gas outlet 6, air inlet 2 are arranged on the top of tower body 1, and gas outlet 2 is arranged on the side on the top of tower body 1, and the bottom of tower body 1 sets There is collecting tank 7.The filter layer 5 for Venturi tube 3 being provided with tower body 1 and for dehydration of gas and being flowed, filter layer 5 is porcelain ball filler Layer, the voidage of porcelain ball filler layer is 0.5~0.7.The arrival end of Venturi tube 3 is connected with air inlet 2, and filter layer 5 is located at text Between the gas outlet 6 of the port of export of venturi 3 and tower body 1.Venturi tube 3 and filter layer 5 are located at the top of collecting tank 7, coal gas Entered in Venturi tube 3 by air inlet 2, and exit into the bottom in tower body 1 by the port of export of Venturi tube 3, into tower The coal gas of body 1 enters the top of tower body 1 again by the dehydration of filter layer 5 and after flowing, and is converged by gas outlet 6 and enter system pipes Net.
As shown in figure 1, being provided with spray alkali device 4 in Venturi tube 3, and spray the entrance that alkali device 4 is arranged on Venturi tube 3 End, coal gas is in Venturi tube 3 and after the alkaline reaction of 4 ejection of spray alkali device by waste collection in collecting tank 7.Using literary mound In pipe 3, and spray alkali device 4 is arranged on the arrival end of Venturi tube 3, enters Venturi tube 3 containing sour coal gas, while spraying alkali dress Put 4 ejection alkali liquor, coal gas accelerates flowing in Venturi tube 3, the high velocity air of more than 40m/s is formed by the alkali liquor mist for spraying out Change, coal gas and alkali liquor together flow through Venturi tube 3 and carries out acid-base neutralization reaction, extend the contact area of alkali liquor and coal gas, The disturbance between alkali liquor and coal gas is strengthened, is strengthened acid-base neutralization reaction, is realized the purpose of efficient deacidification, improve the utilization of alkali liquor Rate, reduces waste liquid amount, reduces cost.And spray alkali device 4 is arranged on into arrival end directly, alkali liquor and coal gas are directly by literary mound In pipe 3 be atomized, without the need for again by external device auxiliary alkali liquid mist, simple structure, reduce cost.
Support bracket is provided with tower body 1, flase floor is equipped with Support bracket, on flase floor, is equipped with silk screen, filter layer 5 Be laid on silk screen, the porcelain ball of filter layer 5 is mainly fabricated by by aluminium sesquioxide and silicon dioxide, using aluminium sesquioxide and Porcelain ball made by silicon dioxide is used as filter layer 5 so that corrosion resistance, high temperature resistant and fire resistance more preferably, and are safeguarded also more Plus it is convenient.For reaching preferably dehydration and flowing effect, filter layer 5 is at least provided with two-layer porcelain ball, and every layer of porcelain of filter layer 5 The particle diameter of ball is not less than 6mm, i.e., be not less than 300mm with diameter greater than the packed height equal to 6mm, every layer of porcelain ball, i.e. height More than or equal to 300mm.In the present embodiment, filter layer 5 laying two-layer porcelain ball, ground floor porcelain ball 5a with diameter greater than second layer porcelain The diameter of ball 5b, along air current flow direction, first lays the ground floor porcelain ball 5a of a diameter of 19mm on silk screen, then on silk screen upper berth If the second layer porcelain ball 5b of a diameter of 6mm, the height of every layer of porcelain ball are 500mm.The diameter of the porcelain ball of laying by lower floor upwards Layer is gradually reduced so that gap is progressively intensive, is conducive to coal gas to be progressively dehydrated and flows, and stability is more preferable, and every layer of porcelain ball Diameter causes every layer of porcelain ball tiling stable and uniform using identical diameter, be easy to coal gas stable and uniform through filter layer 5.Pass through Silk screen is set, is easy to changing the various sizes of porcelain ball of laying, it is simple to operation, it is applied widely.
This utility model is by simple structure design, and compact layout, improves the deacidification efficiency and of coal gas Even dehydrating effect, improves the safety of production maintenance, reduces maintenance difficulties, extends the service life of equipment, reduces Production cost.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited Type.Any person skilled in the art all can be carried out to above-described embodiment under without prejudice to spirit and the scope of the present utility model Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in this utility model All equivalent modifications completed under god and technological thought or change, should be covered by claim of the present utility model.

Claims (10)

1. a kind of blast furnace gas wet method deacidification device, including tower body, the tower body is provided with air inlet and gas outlet, and its feature exists In:The filter layer for being provided with Venturi tube in the tower body and for dehydration of gas and flowing, the filter layer are porcelain ball filler layer.
2. a kind of blast furnace gas wet method deacidification device according to claim 1, it is characterised in that:The sky of the porcelain ball filler layer Gap rate is 0.5~0.7.
3. a kind of blast furnace gas wet method deacidification device according to claim 1, it is characterised in that:The filter layer is located at literary mound In between the port of export of pipe and the gas outlet of tower body, the arrival end of the Venturi tube is connected with air inlet, and coal gas is by venturi The port of export of pipe is flowed through filter layer dehydration after flowing out.
4. a kind of blast furnace gas wet method deacidification device according to claim 1, it is characterised in that:The filter layer is included at least Two-layer porcelain ball.
5. a kind of blast furnace gas wet method deacidification device according to claim 4, it is characterised in that:Every layer of porcelain of the filter layer The particle diameter of ball is more than or equal to 6mm, and the packed height of every layer of porcelain ball is more than or equal to 300mm.
6. a kind of blast furnace gas wet method deacidification device according to claim 5, it is characterised in that:The ground floor of the filter layer Porcelain ball is with diameter greater than equal to second layer porcelain ball diameter.
7. a kind of blast furnace gas wet method deacidification device according to claim 1, it is characterised in that:The porcelain ball of the filter layer by Aluminium sesquioxide and silicon dioxide are fabricated by.
8. a kind of blast furnace gas wet method deacidification device according to claim 1, it is characterised in that:Support is provided with the tower body Bracket, is equipped with flase floor on the Support bracket, be equipped with silk screen on the flase floor, and the filter layer is laid on silk screen On.
9. a kind of blast furnace gas wet method deacidification device according to claim 1, it is characterised in that:It is provided with the Venturi tube Spray alkali device, and spray the arrival end that alkali device is arranged on Venturi tube.
10. a kind of blast furnace gas wet method deacidification device according to claim 1, it is characterised in that:The air inlet and outlet Mouth is arranged on the top of tower body, and the bottom of the tower body is provided with collecting tank, and the Venturi tube and filter layer are located at collecting tank Top.
CN201621088051.5U 2016-09-28 2016-09-28 Blast furnace gas wet process deacidification ware Active CN206033786U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621088051.5U CN206033786U (en) 2016-09-28 2016-09-28 Blast furnace gas wet process deacidification ware

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621088051.5U CN206033786U (en) 2016-09-28 2016-09-28 Blast furnace gas wet process deacidification ware

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Publication Number Publication Date
CN206033786U true CN206033786U (en) 2017-03-22

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107385129A (en) * 2017-09-20 2017-11-24 中冶南方工程技术有限公司 A kind of blast furnace gas saturator method cleaning system
CN109576002A (en) * 2018-12-21 2019-04-05 袁家和 Spray Saturator is used in a kind of production of coke-stove gas
WO2021227521A1 (en) * 2020-05-13 2021-11-18 中冶南方工程技术有限公司 Gas cleaning apparatus and gas system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107385129A (en) * 2017-09-20 2017-11-24 中冶南方工程技术有限公司 A kind of blast furnace gas saturator method cleaning system
CN109576002A (en) * 2018-12-21 2019-04-05 袁家和 Spray Saturator is used in a kind of production of coke-stove gas
WO2021227521A1 (en) * 2020-05-13 2021-11-18 中冶南方工程技术有限公司 Gas cleaning apparatus and gas system

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